Clip for detector-bars.



No. 724,439. PATEK ED Am-7, 190's.

J. P. COLEMAN.

CLIP FOR DETECTOR BARS. APPLICATION FILED JAN. 10. 1903.

N0 MODEL. 2 SHEETS-SHEET 1.

\ I I V I 'Nd. 724,439. PATENTED APR. 7, 1903.

. J. P; COLEMAN.

CLIP FOR DETECTOR BARS.-

) APPLICATION FILED JAN. 10. 1903. 7

30 MODEL. 2 SHEETS-SHEET 2,

5: B O' '6 0 D WITNESSES INYEIITOH UNITED STATES PATENT OFFICE.

JOHN PRESSLEY COLEMAN, OFFDGEWOOD, PENNSYLVANIA, ASSIGNOR TO THE UNION SWITCH AND SIGNAL COMPANY, OF SWISSVALE, PENNSYL VANIA, A CORPORATION OF PENNSYLVANIA.

CLIP FOR DETECTOR-BARS.

SPECIFICATION forming part of Letters Patent N 0. 724,439, dated April 7, 1903.

Application filed January 10, 1903. Serial No. 138,527. (No model.)

T 0 all whom it may concern.-

Be it known that I, JOHN PRESSLEY COLE- MAN, a citizen of the United States, residing at Edgewood, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Clips for Detector-Bars, of which the following is a specification.

My invention relates to clips or brackets which are employed to support detector-bars in position alongside a railroad-rail.

I will describe a clip or bracket embodying my invention, together with several modifications, and then point out the novel features thereof in the claims.

In the accompanying drawings, Figure 1 is a top plan view of a clip embodying my invention, a part of a railroad-rail, and a part of a detector-bar. Fig. 2 is a view, partly in vertical transverse section and partly in elevation, of the clip shown in Fig. 1. Figs. 3 and 4 are each detail views. Fig. 5 is a side elevation of a modified form of clip embodying my invention. Fig. 6 is a view, partly in elevation and partly in vertical section, of the clip shown in Fig. 5 and drawn to a larger scale. Fig. 7 is a view similar to Fig. 6, but showing another modification. Fig. 8 is a detail view of a part of the clip shown in Fig. 7.

Similar letters of reference designate corresponding parts in all of the figures.

A designates a portion of a railroad-rail.

B designates a-portion of a detector-bar, and b one of a number of motion-plates which is suitably secured to the detector-bar.

b designates a cam, here shown as being in the form of a rib, provided on the motionplate, with which the clip coacts to give the desired motion to the detector-bar when the detector-bar is moved longitudinally by any desired mechanism. If desired, the cam' 19 may be formed directly on the detector-bar.

C designates a clip or bracket, and D a clamp for securing the clip or bracket to the rail. The clip is here shown as comprising two independent parts 0 c. The part c is so formed as to fit under the head and on top of the flange on one side of the rail, and it is provided with a step 0 The part c is provided with a lug or projection 0 which coacts with the cam b in the usual manner, and its lower end rests on the' step c of the part c, which is provided for it. The two parts in the form shown in Figs. 1 and 2 are secured together by means of a bolt 0 the head of the bolt fitting in a countersunk recess provided in the part c. The two parts are suitably spaced apart by a cylindrical portion 0, integral with the bolt and of a greater diameter than the shank of the bolt. The bolt is retained in the two parts by means of a pin 0.

c designates a roller journaled on the cylindrical portion 0 and it serves as an anti friction-surface on which the cam 1) travels.

The clamp D is here shown as being in one piece and as having a rib d, which is pro vided to strengthen the clamp. The clamp is provided with a flat surface portion 01 which fits the bottom of the rail-flange, and with a hook portion at at one end, which re ceives an edge portion of the rail-flange. The opposite end of the clamp is provided with an upwardly-inclined portion, which assists in supporting the clip C. The rib d beneath this inclined portion is of considerable depth, as the greatest strain from the clip and detector-bar is put upon the clamp at this point.

The clamp is also provided with a boss ol at this end, in which a bolt (1 works. This bolt is provided to hold the clip Cin position on the rail, and, as shown in Figs. 1 and 2, the bolt (1 acts directly on the head of the bolt 0 A locking-nut d is provided on the bolt (1 to hold it in any adjusted position.

In Figs. 4 and 5 the two parts 0 c of the clip are spaced'apart by a'washer e, which surrounds the bolt 0 and instead of a pin for holding the bolt 0 a nut e is employed. In this form also the clamp D does not directly assist in supporting the clip, but instead the bolt (1 is placed in such position in the clamp as to assist in supporting the clip. In this form the end of the bolt'd fits in a recess or socket provided in the lower portion of the part c. I

In Figs. '7 and 8 I employ the same means for connecting and spacing the two parts of the clip illustrated in Figs. 5 and 6 and the same form of clamp shown in Figs. 1 to 4.

What I claim as my invention is 1. The combination with a clip for a deteeter-bar, of a clamp independent of the clip for holding the clip in position on a railroadrail, said clamp being in one piece, extending under theflange of the railroad-rail, having a hook at one end to receive an edge portion of the flange ot' the railroad-rail and a clamping-bolt which engages the clip.

2. The combination with a clip fordetectorbars, of a c1amp,independent of the clip, for holding the clipin position on a railroad-rail, said clamp being in one piece, extending under the flange of the railroad-rail, having a hook at one end to receive an edge portion of x 5 the flange of the railroad-rail, having a portion which assists in supporting the clip and a clamping-bolt which engages the clip.

In testimony whereof I have signed my name to this specification in the presence of 20 two subscribing witnesses.

JOHN PRESSLEY COLEMAN.

Witnesses:

GEO. E. CnUsE, W. L. MCDANIEL. 

